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1 | // Created on: 1992-09-02 |
2 | // Created by: Remi GILET |
3 | // Copyright (c) 1992-1999 Matra Datavision |
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4 | // Copyright (c) 1999-2014 OPEN CASCADE SAS |
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5 | // |
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6 | // This file is part of Open CASCADE Technology software library. |
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7 | // |
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8 | // This library is free software; you can redistribute it and/or modify it under |
9 | // the terms of the GNU Lesser General Public License version 2.1 as published |
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10 | // by the Free Software Foundation, with special exception defined in the file |
11 | // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT |
12 | // distribution for complete text of the license and disclaimer of any warranty. |
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13 | // |
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14 | // Alternatively, this file may be used under the terms of Open CASCADE |
15 | // commercial license or contractual agreement. |
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16 | |
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17 | |
18 | #include <gce_MakeElips.hxx> |
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19 | #include <gp.hxx> |
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20 | #include <gp_Ax2.hxx> |
21 | #include <gp_Elips.hxx> |
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22 | #include <gp_Lin.hxx> |
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23 | #include <gp_Pnt.hxx> |
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24 | #include <StdFail_NotDone.hxx> |
25 | |
26 | //========================================================================= |
27 | // Creation d une Ellipse 3d de gp a partir de son Ax2 et de son + |
28 | // grand rayon <MajorRadius> et son petit rayon <MinorRadius>. + |
29 | //========================================================================= |
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30 | gce_MakeElips::gce_MakeElips(const gp_Ax2& A2 , |
31 | const Standard_Real MajorRadius , |
32 | const Standard_Real MinorRadius ) |
33 | { |
34 | if (MajorRadius < MinorRadius ) { TheError = gce_InvertRadius;} |
35 | else if (MinorRadius < 0.0) { TheError = gce_NegativeRadius; } |
36 | else { |
37 | TheElips = gp_Elips(A2,MajorRadius,MinorRadius); |
38 | TheError = gce_Done; |
39 | } |
40 | |
41 | } |
42 | |
43 | //========================================================================= |
44 | // Creation d une Ellipse 3d de gp de centre <Center> et de sommets + |
45 | // <S1> et <S2>. + |
46 | // <S1> donne le grand rayon et <S2> le petit rayon. + |
47 | //========================================================================= |
48 | |
49 | gce_MakeElips::gce_MakeElips(const gp_Pnt& S1 , |
50 | const gp_Pnt& S2 , |
51 | const gp_Pnt& Center ) |
52 | { |
53 | Standard_Real D1 = S1.Distance(Center); |
54 | if (D1 < gp::Resolution()) { TheError = gce_NullAxis; } |
55 | else { |
56 | gp_Dir XAxis(gp_XYZ(S1.XYZ()-Center.XYZ())); |
57 | Standard_Real D2 = gp_Lin(Center,XAxis).Distance(S2); |
58 | if (D1 < D2 || D2 < gp::Resolution()) { TheError = gce_InvertAxis; } |
59 | else { |
60 | gp_Dir Norm(XAxis.Crossed(gp_Dir(gp_XYZ(S2.XYZ()-Center.XYZ())))); |
61 | TheElips = gp_Elips(gp_Ax2(Center,Norm,XAxis),D1,D2); |
62 | TheError = gce_Done; |
63 | } |
64 | } |
65 | } |
66 | |
67 | const gp_Elips& gce_MakeElips::Value() const |
68 | { |
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69 | StdFail_NotDone_Raise_if (TheError != gce_Done, |
70 | "gce_MakeElips::Value() - no result"); |
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71 | return TheElips; |
72 | } |
73 | |
74 | const gp_Elips& gce_MakeElips::Operator() const |
75 | { |
76 | return Value(); |
77 | } |
78 | |
79 | gce_MakeElips::operator gp_Elips() const |
80 | { |
81 | return Value(); |
82 | } |